<template>
    <div>
        <!--面包屑导航区-->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!--卡片视图区域-->
        <el-card>
            <!--gutter组件间距-->
            <el-row :gutter="20">
                <el-col :span="8">
                    <!--clearable搜索框显示清空小叉号-->
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable  @clear="getGoodsList" >
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>
            <!--table表格区-->
            <el-table :data="goodsList" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
                <!--这边用了过滤器(main.js)中，进行了时间格式转换-->
                <el-table-column label="创建时间" prop="add_time" width="140px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>
            
            <!--分页区-->
            <!--background添加背景-->
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="queryInfo.pagenum"
                    :page-sizes="[5, 10, 15, 20]"
                    :page-size="queryInfo.pagesize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total" background>
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
  export default {
    name: 'List',
    data(){
      return{
        //查询参数对象
        queryInfo: {
          query:'',
          pagenum:1,
          pagesize:10
        },
        goodsList:[],
        //总数据条数
        total:0
      }
    },
    methods:{
        //根据分页获取对应商品列表
        getGoodsList() {
            this.$http.get('goods',{params:this.queryInfo})
            .then(res => {
              if (res.data.meta.status !== 200){
                return  this.$message.error('获取商品列表失败')
              }
              this.$message.success('获取商品列表成功')
              console.log(res.data)
              this.goodsList = res.data.data.goods
              this.total = res.data.data.total
            })
        },
      handleSizeChange(newSize) {
        this.queryInfo.pagesize = newSize
        this.getGoodsList()
      },
      handleCurrentChange(newPage){
        this.queryInfo.pagenum = newPage
        this.getGoodsList()
      },
      //删除商品
      removeById(id){
        //这是弹框组件
        this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then((res) => {
          //确认时res会返回confirm
          if (res === 'confirm') {
            //发起请求删除用户信息
            this.$http.delete('goods/'+id)
              .then(res => {
                if (res.data.meta.status !==200) {
                  return  this.$message.error('删除商品失败')
                }
                this.$message.success('删除商品成功')
                this.getGoodsList()
              })
          }
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          });
        });
     },
      //添加商品页面
      goAddpage() {
          this.$router.push('/goods/add')
      }
    },
    created () {
        this.getGoodsList()
    }
  }
</script>

<style scoped>

</style>
